Dahua 4MP 2.8mm IPDome Camera (DH-IPC-HDBW2431FP-AS-0280B-S2) - Max. Resolution: 2688 (H) × 1520 (V), Electronic Shutter Speed: Auto/Manual 1/3 s–1/100,000 s, Focal Length: 2.8 mm, ROM: 128 MB, RAM: 128 MB, Audio: Built-in MIC, Network: RJ-45 (10/100 Base-T), Ports: Audio Input: 1 channel (RCA port), Audio Output: 1 channel (RCA port), Alarm Input: 1 channel in: 5mA 3V–5V DC, Alarm Output: 1 channel out: 300mA 12V DC, Pan/Tilt/Rotation Range: Pan: –30°–30°, Tilt: 0°–80°, Rotation: 0°–360°